Metal deforming – By application of fluent medium – or energy field – Using fixed die
Patent
1997-03-28
1999-11-30
Jones, David
Metal deforming
By application of fluent medium, or energy field
Using fixed die
723427, 7234297, 294211, B21D 918
Patent
active
059921978
ABSTRACT:
A forming device including discreet heating zones along the axial length and circumferential portion of a mold cavity. One zone can be heated to cause the heated tube portion to become more elastic than the non-heated tube portions. As a result, less axial force and radial pressures are required in order to provide the necessary metal deformation against the mold halves. Preferably, the heating zones are provided by way of a series of induction coils disposed along the axial length and circumferential portion of the tube. Each induction coil can be individually energized so that select portions of the tube are heated in a controlled manner.
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Freeman Richard B.
Handley Mark C.
Jones David
The Budd Company
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